RISCVFrameLowering.cpp File Reference

#include "RISCVFrameLowering.h"
#include "MCTargetDesc/RISCVBaseInfo.h"
#include "RISCVMachineFunctionInfo.h"
#include "RISCVSubtarget.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/CodeGen/CFIInstBuilder.h"
#include "llvm/CodeGen/LivePhysRegs.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/RegisterScavenging.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/MC/MCDwarf.h"
#include "llvm/Support/LEB128.h"
#include <algorithm>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "riscv-frame"

Functions
static Align	getABIStackAlignment (RISCVABI::ABI ABI)
static bool	needsDwarfCFI (const MachineFunction &MF)
	Returns true if DWARF CFI instructions ("frame moves") should be emitted.
static void	emitSCSPrologue (MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const DebugLoc &DL)
static void	emitSCSEpilogue (MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const DebugLoc &DL)
static void	emitSiFiveCLICStackSwap (MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, const DebugLoc &DL)
static void	createSiFivePreemptibleInterruptFrameEntries (MachineFunction &MF, RISCVMachineFunctionInfo &RVFI)
static void	emitSiFiveCLICPreemptibleSaves (MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, const DebugLoc &DL)
static void	emitSiFiveCLICPreemptibleRestores (MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, const DebugLoc &DL)
static int	getLibCallID (const MachineFunction &MF, const std::vector< CalleeSavedInfo > &CSI)
static const char *	getSpillLibCallName (const MachineFunction &MF, const std::vector< CalleeSavedInfo > &CSI)
static const char *	getRestoreLibCallName (const MachineFunction &MF, const std::vector< CalleeSavedInfo > &CSI)
static unsigned	getNumPushPopRegs (const std::vector< CalleeSavedInfo > &CSI)
static SmallVector< CalleeSavedInfo, 8 >	getUnmanagedCSI (const MachineFunction &MF, const std::vector< CalleeSavedInfo > &CSI)
static SmallVector< CalleeSavedInfo, 8 >	getRVVCalleeSavedInfo (const MachineFunction &MF, const std::vector< CalleeSavedInfo > &CSI)
static SmallVector< CalleeSavedInfo, 8 >	getPushOrLibCallsSavedInfo (const MachineFunction &MF, const std::vector< CalleeSavedInfo > &CSI)
static SmallVector< CalleeSavedInfo, 8 >	getQCISavedInfo (const MachineFunction &MF, const std::vector< CalleeSavedInfo > &CSI)
static void	appendScalableVectorExpression (const TargetRegisterInfo &TRI, SmallVectorImpl< char > &Expr, int FixedOffset, int ScalableOffset, llvm::raw_string_ostream &Comment)
static MCCFIInstruction	createDefCFAExpression (const TargetRegisterInfo &TRI, Register Reg, uint64_t FixedOffset, uint64_t ScalableOffset)
static MCCFIInstruction	createDefCFAOffset (const TargetRegisterInfo &TRI, Register Reg, uint64_t FixedOffset, uint64_t ScalableOffset)
static bool	isPush (unsigned Opcode)
static bool	isPop (unsigned Opcode)
static unsigned	getPushOpcode (RISCVMachineFunctionInfo::PushPopKind Kind, bool UpdateFP)
static unsigned	getPopOpcode (RISCVMachineFunctionInfo::PushPopKind Kind)
static MCRegister	getRVVBaseRegister (const RISCVRegisterInfo &TRI, const Register &Reg)
static unsigned	getScavSlotsNumForRVV (MachineFunction &MF)
static bool	hasRVVFrameObject (const MachineFunction &MF)
static unsigned	estimateFunctionSizeInBytes (const MachineFunction &MF, const RISCVInstrInfo &TII)
static unsigned	getCalleeSavedRVVNumRegs (const Register &BaseReg)
static void	emitStackProbeInline (MachineBasicBlock::iterator MBBI, DebugLoc DL, Register TargetReg, bool IsRVV)

Variables
static constexpr MCPhysReg	FPReg = RISCV::X8
static constexpr MCPhysReg	SPReg = RISCV::X2
static constexpr MCPhysReg	RAReg = RISCV::X1
static const MCPhysReg	FixedCSRFIMap []
static constexpr uint64_t	QCIInterruptPushAmount = 96
static const std::pair< MCPhysReg, int8_t >	FixedCSRFIQCIInterruptMap []

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "riscv-frame"

Definition at line 31 of file RISCVFrameLowering.cpp.

Function Documentation

appendScalableVectorExpression()

void appendScalableVectorExpression ( const TargetRegisterInfo & TRI, SmallVectorImpl< char > & Expr, int FixedOffset, int ScalableOffset, llvm::raw_string_ostream & Comment )

static

Definition at line 674 of file RISCVFrameLowering.cpp.

References llvm::SmallVectorImpl< T >::append(), llvm::encodeSLEB128(), llvm::encodeULEB128(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and TRI.

Referenced by createDefCFAExpression(), and createDefCFAOffset().

createDefCFAExpression()

MCCFIInstruction createDefCFAExpression ( const TargetRegisterInfo & TRI, Register Reg, uint64_t FixedOffset, uint64_t ScalableOffset )

static

Definition at line 701 of file RISCVFrameLowering.cpp.

References llvm::SmallString< InternalLen >::append(), appendScalableVectorExpression(), assert(), llvm::MCCFIInstruction::createEscape(), llvm::encodeULEB128(), llvm::printReg(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), Reg, llvm::SmallVectorTemplateCommon< T, typename >::size(), SPReg, llvm::SmallString< InternalLen >::str(), and TRI.

createDefCFAOffset()

MCCFIInstruction createDefCFAOffset ( const TargetRegisterInfo & TRI, Register Reg, uint64_t FixedOffset, uint64_t ScalableOffset )

static

Definition at line 731 of file RISCVFrameLowering.cpp.

References llvm::SmallString< InternalLen >::append(), appendScalableVectorExpression(), assert(), llvm::MCCFIInstruction::createEscape(), llvm::encodeULEB128(), llvm::printReg(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), Reg, llvm::SmallVectorTemplateCommon< T, typename >::size(), llvm::SmallString< InternalLen >::str(), and TRI.

createSiFivePreemptibleInterruptFrameEntries()

void createSiFivePreemptibleInterruptFrameEntries ( MachineFunction & MF, RISCVMachineFunctionInfo & RVFI )

static

Definition at line 251 of file RISCVFrameLowering.cpp.

References llvm::MachineFrameInfo::CreateStackObject(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getSubtarget(), I, llvm::RISCVMachineFunctionInfo::isSiFivePreemptibleInterrupt(), llvm::RISCVMachineFunctionInfo::pushInterruptCSRFrameIndex(), and TRI.

Referenced by llvm::RISCVFrameLowering::determineCalleeSaves().

emitSCSEpilogue()

void emitSCSEpilogue ( MachineFunction & MF, MachineBasicBlock & MBB, MachineBasicBlock::iterator MI, const DebugLoc & DL )

static

Definition at line 181 of file RISCVFrameLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), llvm::CFIInstBuilder::buildRestore(), llvm::RegState::Define, DL, llvm::MachineInstr::FrameDestroy, llvm::MachineFrameInfo::getCalleeSavedInfo(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getFunction(), llvm::CalleeSavedInfo::getReg(), llvm::RISCVABI::getSCSPReg(), llvm::MachineFunction::getSubtarget(), llvm::Function::hasFnAttribute(), MBB, MI, needsDwarfCFI(), llvm::none_of(), RAReg, llvm::MachineInstrBuilder::setMIFlag(), and TII.

Referenced by llvm::RISCVFrameLowering::emitEpilogue().

emitSCSPrologue()

void emitSCSPrologue ( MachineFunction & MF, MachineBasicBlock & MBB, MachineBasicBlock::iterator MI, const DebugLoc & DL )

static

Definition at line 105 of file RISCVFrameLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::CFIInstBuilder::buildEscape(), llvm::BuildMI(), llvm::RegState::Define, DL, llvm::MachineInstr::FrameSetup, llvm::MachineFrameInfo::getCalleeSavedInfo(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getFunction(), llvm::CalleeSavedInfo::getReg(), llvm::RISCVABI::getSCSPReg(), llvm::MachineFunction::getSubtarget(), llvm::Function::hasFnAttribute(), MBB, MI, needsDwarfCFI(), llvm::none_of(), llvm::Offset, RAReg, llvm::MachineInstrBuilder::setMIFlag(), TII, and TRI.

Referenced by llvm::RISCVFrameLowering::emitPrologue().

emitSiFiveCLICPreemptibleRestores()

void emitSiFiveCLICPreemptibleRestores ( MachineFunction & MF, MachineBasicBlock & MBB, MachineBasicBlock::iterator MBBI, const DebugLoc & DL )

static

Definition at line 323 of file RISCVFrameLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), llvm::RegState::Define, DL, llvm::MachineInstr::FrameSetup, llvm::MachineFunction::getInfo(), llvm::MachineFunction::getSubtarget(), llvm::RegState::Kill, MBB, MBBI, llvm::MachineInstrBuilder::setMIFlag(), and TII.

Referenced by llvm::RISCVFrameLowering::emitEpilogue().

emitSiFiveCLICPreemptibleSaves()

void emitSiFiveCLICPreemptibleSaves ( MachineFunction & MF, MachineBasicBlock & MBB, MachineBasicBlock::iterator MBBI, const DebugLoc & DL )

static

Definition at line 271 of file RISCVFrameLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), llvm::RegState::Define, DL, llvm::MachineInstr::FrameSetup, llvm::MachineFunction::getInfo(), llvm::MachineFunction::getSubtarget(), MBB, MBBI, llvm::MachineInstrBuilder::setMIFlag(), and TII.

Referenced by llvm::RISCVFrameLowering::emitPrologue().

emitSiFiveCLICStackSwap()

void emitSiFiveCLICStackSwap ( MachineFunction & MF, MachineBasicBlock & MBB, MachineBasicBlock::iterator MBBI, const DebugLoc & DL )

static

Definition at line 228 of file RISCVFrameLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), llvm::RegState::Define, DL, llvm::MachineInstr::FrameSetup, llvm::MachineFunction::getInfo(), llvm::MachineFunction::getSubtarget(), llvm::RegState::Kill, MBB, MBBI, llvm::MachineInstrBuilder::setMIFlag(), SPReg, and TII.

Referenced by llvm::RISCVFrameLowering::emitEpilogue(), and llvm::RISCVFrameLowering::emitPrologue().

emitStackProbeInline()

void emitStackProbeInline ( MachineBasicBlock::iterator MBBI, DebugLoc DL, Register TargetReg, bool IsRVV )

static

Definition at line 2408 of file RISCVFrameLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMBB(), llvm::MachineInstrBuilder::addReg(), llvm::MachineBasicBlock::addSuccessor(), assert(), llvm::BuildMI(), llvm::MachineFunction::CreateMachineBasicBlock(), DL, llvm::MachineBasicBlock::end(), llvm::MachineInstr::FrameSetup, llvm::fullyRecomputeLiveIns(), llvm::RISCVTargetLowering::getStackProbeSize(), llvm::MachineFunction::getSubtarget(), llvm::MachineFunction::insert(), MBB, MBBI, llvm::MachineInstrBuilder::setMIFlags(), llvm::MachineBasicBlock::splice(), SPReg, TII, and llvm::MachineBasicBlock::transferSuccessorsAndUpdatePHIs().

estimateFunctionSizeInBytes()

unsigned estimateFunctionSizeInBytes ( const MachineFunction & MF, const RISCVInstrInfo & TII )

static

Definition at line 1761 of file RISCVFrameLowering.cpp.

References llvm::MachineFunction::getSubtarget(), MBB, MI, and TII.

getABIStackAlignment()

Align getABIStackAlignment ( RISCVABI::ABI ABI )

static

Definition at line 35 of file RISCVFrameLowering.cpp.

References llvm::RISCVABI::ABI_ILP32E, and llvm::RISCVABI::ABI_LP64E.

Referenced by llvm::RISCVFrameLowering::RISCVFrameLowering().

getCalleeSavedRVVNumRegs()

unsigned getCalleeSavedRVVNumRegs ( const Register & BaseReg )

static

Definition at line 2188 of file RISCVFrameLowering.cpp.

getLibCallID()

int getLibCallID ( const MachineFunction & MF, const std::vector< CalleeSavedInfo > & CSI )

static

Definition at line 374 of file RISCVFrameLowering.cpp.

References FPReg, llvm::MachineFunction::getInfo(), llvm::MCRegister::id(), llvm_unreachable, and RAReg.

Referenced by llvm::RISCVFrameLowering::assignCalleeSavedSpillSlots(), llvm::RISCVFrameLowering::emitEpilogue(), llvm::RISCVFrameLowering::emitPrologue(), getRestoreLibCallName(), and getSpillLibCallName().

getNumPushPopRegs()

unsigned getNumPushPopRegs ( const std::vector< CalleeSavedInfo > & CSI )

static

Definition at line 467 of file RISCVFrameLowering.cpp.

References assert(), llvm::find_if(), FixedCSRFIMap, and P.

Referenced by llvm::RISCVFrameLowering::assignCalleeSavedSpillSlots().

getPopOpcode()

unsigned getPopOpcode ( RISCVMachineFunctionInfo::PushPopKind Kind )

static

Definition at line 902 of file RISCVFrameLowering.cpp.

References llvm_unreachable, llvm::RISCVMachineFunctionInfo::StdExtZcmp, and llvm::RISCVMachineFunctionInfo::VendorXqccmp.

Referenced by llvm::RISCVFrameLowering::restoreCalleeSavedRegisters().

getPushOpcode()

unsigned getPushOpcode ( RISCVMachineFunctionInfo::PushPopKind Kind, bool UpdateFP )

static

Definition at line 890 of file RISCVFrameLowering.cpp.

References llvm_unreachable, llvm::RISCVMachineFunctionInfo::StdExtZcmp, and llvm::RISCVMachineFunctionInfo::VendorXqccmp.

Referenced by llvm::RISCVFrameLowering::spillCalleeSavedRegisters().

getPushOrLibCallsSavedInfo()

SmallVector< CalleeSavedInfo, 8 > getPushOrLibCallsSavedInfo ( const MachineFunction & MF, const std::vector< CalleeSavedInfo > & CSI )

static

Definition at line 583 of file RISCVFrameLowering.cpp.

References FixedCSRFIMap, FixedCSRFIQCIInterruptMap, llvm::MachineFunction::getInfo(), llvm::is_contained(), and llvm::make_first_range().

Referenced by llvm::RISCVFrameLowering::emitEpilogue(), and llvm::RISCVFrameLowering::emitPrologue().

getQCISavedInfo()

SmallVector< CalleeSavedInfo, 8 > getQCISavedInfo ( const MachineFunction & MF, const std::vector< CalleeSavedInfo > & CSI )

static

Definition at line 610 of file RISCVFrameLowering.cpp.

References FixedCSRFIQCIInterruptMap, llvm::MachineFunction::getInfo(), llvm::is_contained(), and llvm::make_first_range().

Referenced by llvm::RISCVFrameLowering::emitPrologue().

getRestoreLibCallName()

const char * getRestoreLibCallName ( const MachineFunction & MF, const std::vector< CalleeSavedInfo > & CSI )

static

Definition at line 442 of file RISCVFrameLowering.cpp.

References getLibCallID().

Referenced by llvm::RISCVFrameLowering::restoreCalleeSavedRegisters().

getRVVBaseRegister()

MCRegister getRVVBaseRegister ( const RISCVRegisterInfo & TRI, const Register & Reg )

static

Definition at line 1558 of file RISCVFrameLowering.cpp.

References Reg, and TRI.

Referenced by llvm::RISCVFrameLowering::determineCalleeSaves().

getRVVCalleeSavedInfo()

SmallVector< CalleeSavedInfo, 8 > getRVVCalleeSavedInfo ( const MachineFunction & MF, const std::vector< CalleeSavedInfo > & CSI )

static

Definition at line 568 of file RISCVFrameLowering.cpp.

References llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::getStackID(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::TargetStackID::ScalableVector.

Referenced by llvm::RISCVFrameLowering::emitEpilogue(), llvm::RISCVFrameLowering::emitPrologue(), llvm::RISCVFrameLowering::restoreCalleeSavedRegisters(), and llvm::RISCVFrameLowering::spillCalleeSavedRegisters().

getScavSlotsNumForRVV()

unsigned getScavSlotsNumForRVV ( MachineFunction & MF )

static

Definition at line 1698 of file RISCVFrameLowering.cpp.

References llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::getStackID(), llvm::MachineFunction::getSubtarget(), llvm::RISCVSubtarget::hasVInstructions(), llvm::RISCV::isRVVSpill(), MBB, MI, and llvm::TargetStackID::ScalableVector.

Referenced by llvm::RISCVFrameLowering::processFunctionBeforeFrameFinalized().

getSpillLibCallName()

const char * getSpillLibCallName ( const MachineFunction & MF, const std::vector< CalleeSavedInfo > & CSI )

static

Definition at line 415 of file RISCVFrameLowering.cpp.

References getLibCallID().

Referenced by llvm::RISCVFrameLowering::spillCalleeSavedRegisters().

getUnmanagedCSI()

SmallVector< CalleeSavedInfo, 8 > getUnmanagedCSI ( const MachineFunction & MF, const std::vector< CalleeSavedInfo > & CSI )

static

Definition at line 553 of file RISCVFrameLowering.cpp.

References llvm::TargetStackID::Default, llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::getStackID(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by llvm::RISCVFrameLowering::emitEpilogue(), llvm::RISCVFrameLowering::emitPrologue(), llvm::RISCVFrameLowering::getFrameIndexReference(), llvm::RISCVFrameLowering::restoreCalleeSavedRegisters(), and llvm::RISCVFrameLowering::spillCalleeSavedRegisters().

hasRVVFrameObject()

bool hasRVVFrameObject ( const MachineFunction & MF )

static

Definition at line 1742 of file RISCVFrameLowering.cpp.

References llvm::MachineFunction::getSubtarget().

Referenced by llvm::RISCVFrameLowering::hasReservedCallFrame(), and llvm::RISCVFrameLowering::processFunctionBeforeFrameFinalized().

isPop()

bool isPop ( unsigned Opcode )

static

Definition at line 878 of file RISCVFrameLowering.cpp.

Referenced by llvm::RISCVFrameLowering::emitEpilogue(), getPopRetOpcode(), and INITIALIZE_PASS().

isPush()

bool isPush ( unsigned Opcode )

static

Definition at line 867 of file RISCVFrameLowering.cpp.

Referenced by llvm::RISCVFrameLowering::emitPrologue().

needsDwarfCFI()

bool needsDwarfCFI ( const MachineFunction & MF )

static

Returns true if DWARF CFI instructions ("frame moves") should be emitted.

Definition at line 99 of file RISCVFrameLowering.cpp.

References llvm::MachineFunction::needsFrameMoves().

Referenced by llvm::RISCVFrameLowering::eliminateCallFramePseudoInstr(), llvm::RISCVFrameLowering::emitEpilogue(), llvm::RISCVFrameLowering::emitPrologue(), emitSCSEpilogue(), and emitSCSPrologue().

Variable Documentation

FixedCSRFIMap

const MCPhysReg FixedCSRFIMap[]

static

Initial value:

= {
     RAReg,       FPReg,       RISCV::X9,
     RISCV::X18,  RISCV::X19,  RISCV::X20,
     RISCV::X21,  RISCV::X22,  RISCV::X23,
     RISCV::X24,  RISCV::X25,  RISCV::X26,
     RISCV::X27}

Definition at line 63 of file RISCVFrameLowering.cpp.

Referenced by llvm::RISCVFrameLowering::assignCalleeSavedSpillSlots(), getNumPushPopRegs(), getPushOrLibCallsSavedInfo(), llvm::RISCVFrameLowering::restoreCalleeSavedRegisters(), and llvm::RISCVFrameLowering::spillCalleeSavedRegisters().

FixedCSRFIQCIInterruptMap

const std::pair<MCPhysReg, int8_t> FixedCSRFIQCIInterruptMap[]

static

Initial value:

= {
    
    { FPReg, -2},
    
    { RAReg, -4},
    
    { RISCV::X5, -6},
    { RISCV::X6, -7},
    { RISCV::X7, -8},
    { RISCV::X10, -9},
    { RISCV::X11, -10},
    { RISCV::X12, -11},
    { RISCV::X13, -12},
    { RISCV::X14, -13},
    { RISCV::X15, -14},
    { RISCV::X16, -15},
    { RISCV::X17, -16},
    { RISCV::X28, -17},
    { RISCV::X29, -18},
    { RISCV::X30, -19},
    { RISCV::X31, -20},
    
}

Definition at line 74 of file RISCVFrameLowering.cpp.

Referenced by llvm::RISCVFrameLowering::assignCalleeSavedSpillSlots(), getPushOrLibCallsSavedInfo(), getQCISavedInfo(), and llvm::RISCVFrameLowering::spillCalleeSavedRegisters().

FPReg

MCPhysReg FPReg = RISCV::X8

staticconstexpr

Definition at line 51 of file RISCVFrameLowering.cpp.

Referenced by llvm::M68kFrameLowering::assignCalleeSavedSpillSlots(), llvm::X86FrameLowering::assignCalleeSavedSpillSlots(), llvm::RISCVFrameLowering::determineCalleeSaves(), llvm::SIFrameLowering::emitEntryFunctionPrologue(), llvm::CSKYFrameLowering::emitEpilogue(), llvm::PPCFrameLowering::emitEpilogue(), llvm::RISCVFrameLowering::emitEpilogue(), llvm::CSKYFrameLowering::emitPrologue(), llvm::LoongArchFrameLowering::emitPrologue(), llvm::PPCFrameLowering::emitPrologue(), llvm::RISCVFrameLowering::emitPrologue(), llvm::RISCVFrameLowering::getFrameIndexReference(), getLibCallID(), llvm::PPCFrameLowering::inlineStackProbe(), llvm::PPCFrameLowering::processFunctionBeforeFrameFinalized(), llvm::PPCFrameLowering::replaceFPWithRealFP(), llvm::Thumb1FrameLowering::restoreCalleeSavedRegisters(), and llvm::Thumb1FrameLowering::spillCalleeSavedRegisters().

QCIInterruptPushAmount

uint64_t QCIInterruptPushAmount = 96

staticconstexpr

Definition at line 72 of file RISCVFrameLowering.cpp.

Referenced by llvm::RISCVFrameLowering::assignCalleeSavedSpillSlots(), and llvm::RISCVFrameLowering::emitPrologue().

RAReg

MCPhysReg RAReg = RISCV::X1

staticconstexpr

Definition at line 57 of file RISCVFrameLowering.cpp.

Referenced by llvm::RISCVFrameLowering::determineCalleeSaves(), emitSCSEpilogue(), emitSCSPrologue(), and getLibCallID().

SPReg

MCPhysReg SPReg = RISCV::X2

staticconstexpr

Definition at line 54 of file RISCVFrameLowering.cpp.

Referenced by llvm::X86FrameLowering::adjustForHiPEPrologue(), llvm::RISCVFrameLowering::allocateStack(), llvm::AMDGPURegisterBankInfo::applyMappingDynStackAlloc(), createDefCFAExpression(), llvm::CSKYFrameLowering::eliminateCallFramePseudoInstr(), llvm::LoongArchFrameLowering::eliminateCallFramePseudoInstr(), llvm::RISCVFrameLowering::eliminateCallFramePseudoInstr(), llvm::SIFrameLowering::eliminateCallFramePseudoInstr(), llvm::RISCVTargetLowering::emitDynamicProbedAlloc(), llvm::SIFrameLowering::emitEntryFunctionPrologue(), llvm::CSKYFrameLowering::emitEpilogue(), llvm::LoongArchFrameLowering::emitEpilogue(), llvm::PPCFrameLowering::emitEpilogue(), llvm::RISCVFrameLowering::emitEpilogue(), llvm::SystemZXPLINKFrameLowering::emitEpilogue(), llvm::WebAssemblyFrameLowering::emitEpilogue(), llvm::PPCTargetLowering::emitProbedAlloca(), llvm::CSKYFrameLowering::emitPrologue(), llvm::LoongArchFrameLowering::emitPrologue(), llvm::PPCFrameLowering::emitPrologue(), llvm::RISCVFrameLowering::emitPrologue(), llvm::WebAssemblyFrameLowering::emitPrologue(), emitSiFiveCLICStackSwap(), emitStackProbeInline(), llvm::LegalizerHelper::getDynStackAllocTargetPtr(), llvm::RISCVFrameLowering::getFrameIndexReference(), M68kOutgoingArgHandler::getStackAddress(), llvm::PPCFrameLowering::inlineStackProbe(), llvm::PPCInstrInfo::isTOCSaveMI(), llvm::LanaiTargetLowering::LowerDYNAMIC_STACKALLOC(), llvm::SITargetLowering::LowerDYNAMIC_STACKALLOC(), LowerDYNAMIC_STACKALLOC(), and llvm::LegalizerHelper::lowerDynStackAlloc().